Procedure 2: Place a 250 g mass into the felt bottomed cart on the level track.

Question

Procedure 2: Place a 250 g mass into the felt bottomed cart on the level track. Hook a string on the end of the cart, pass it over the pulley, and hang the mass-holder (mass 50g) on the other end. Slowly add small slotted masses to the mass-holder until the cart begins to slide.

Refer to procedure 2. Assume the mass of the cart is m, and the mass hanging on the end of the string is M.

Suppose you attached two identical carts of mass m = 3365 g to one end of the string, and doubled the mass M = 483 g. Also, assume the coefficient of kinetic friction between each cart and the surface is the same as in part a. When this system accelerates, the acceleration will be

a) the same as it was in part a
b) less than it was in part a
c) more than it was in part a
d) depends on the value of ?k

Explanation / Answer

(M+0.05)*g - u(m+0.25)*9.8 = M'*a Here we, see as all the masses are doubled, the acceleration remains same, so,the acceleration will be a) the same as it was in part a

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